diff options
| author | Nick Kossifidis <mickflemm@gmail.com> | 2010-11-23 21:09:11 +0200 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2010-11-30 13:52:35 -0500 |
| commit | 3017fcab416d8d1ee48ca16aa9a3062f600dab8e (patch) | |
| tree | 8f6daedc2060c20a0a1a569e8e782991cd28f2a6 /drivers/net/wireless/ath/ath5k/pcu.c | |
| parent | 25ddfa195735934256fda55bb4f2d749c19386ff (diff) | |
ath5k: Extend get_default_sifs/slot_time
* Extend get_default_sifs/slot_time to include timings for turbo
half and quarter rate modes.
* AR5210 code for now uses timings already on core clock units
instead of usecs so rename them (we 'll clean it up later).
Signed-off-by: Nick Kossifidis <mickflemm@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/ath/ath5k/pcu.c')
| -rw-r--r-- | drivers/net/wireless/ath/ath5k/pcu.c | 52 |
1 files changed, 39 insertions, 13 deletions
diff --git a/drivers/net/wireless/ath/ath5k/pcu.c b/drivers/net/wireless/ath/ath5k/pcu.c index 2c2ea1539849..2118f7048f37 100644 --- a/drivers/net/wireless/ath/ath5k/pcu.c +++ b/drivers/net/wireless/ath/ath5k/pcu.c @@ -43,14 +43,27 @@ static unsigned int ath5k_hw_get_default_slottime(struct ath5k_hw *ah) { struct ieee80211_channel *channel = ah->ah_current_channel; + unsigned int slot_time; - if (channel->hw_value & CHANNEL_TURBO) - return 6; /* both turbo modes */ - - if (channel->hw_value & CHANNEL_CCK) - return 20; /* 802.11b */ + switch (ah->ah_bwmode) { + case AR5K_BWMODE_40MHZ: + slot_time = AR5K_INIT_SLOT_TIME_TURBO; + break; + case AR5K_BWMODE_10MHZ: + slot_time = AR5K_INIT_SLOT_TIME_HALF_RATE; + break; + case AR5K_BWMODE_5MHZ: + slot_time = AR5K_INIT_SLOT_TIME_QUARTER_RATE; + break; + case AR5K_BWMODE_DEFAULT: + slot_time = AR5K_INIT_SLOT_TIME_DEFAULT; + default: + if (channel->hw_value & CHANNEL_CCK) + slot_time = AR5K_INIT_SLOT_TIME_B; + break; + } - return 9; /* 802.11 a/g */ + return slot_time; } /** @@ -58,17 +71,30 @@ static unsigned int ath5k_hw_get_default_slottime(struct ath5k_hw *ah) * * @ah: The &struct ath5k_hw */ -static unsigned int ath5k_hw_get_default_sifs(struct ath5k_hw *ah) +unsigned int ath5k_hw_get_default_sifs(struct ath5k_hw *ah) { struct ieee80211_channel *channel = ah->ah_current_channel; + unsigned int sifs; - if (channel->hw_value & CHANNEL_TURBO) - return 8; /* both turbo modes */ - - if (channel->hw_value & CHANNEL_5GHZ) - return 16; /* 802.11a */ + switch (ah->ah_bwmode) { + case AR5K_BWMODE_40MHZ: + sifs = AR5K_INIT_SIFS_TURBO; + break; + case AR5K_BWMODE_10MHZ: + sifs = AR5K_INIT_SIFS_HALF_RATE; + break; + case AR5K_BWMODE_5MHZ: + sifs = AR5K_INIT_SIFS_QUARTER_RATE; + break; + case AR5K_BWMODE_DEFAULT: + sifs = AR5K_INIT_SIFS_DEFAULT_BG; + default: + if (channel->hw_value & CHANNEL_5GHZ) + sifs = AR5K_INIT_SIFS_DEFAULT_A; + break; + } - return 10; /* 802.11 b/g */ + return sifs; } /** |